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The Beta-limits on ballooning and Mercier stability have been calculated for 5-period linked mirror stellarators using the TERPSICHORE code. These are helical systems with a dominant toroidal Fourier component of the magnetic field strength in Boozer coordinates, where m is the poloidal mode number and n is the toroidal mode number per period. We compare the results of the LMS for two types of plasma shape geometry: 1. The 'Heliac' configuration, where the magnetic surface cross-section rotates simultaneously with the principal normal with respect to the magnetic axis. The results highlight the potential advantages of LMS devices as compact systems with high beta and possibly low neoclassical transport.

Additional information

Authors: COOPER W A, Centre de Recherche en Physique des Plasmas Ecole Polytechnique Federale, Lausanne (CH);YU M, Nuclear Fusion Institute, Russian Research Centre, Moscow (RU);SHAFRANOV V D, Nuclear Fusion Institute, Russian Research Centre, Moscow (RU)
Bibliographic Reference: Article: Proceedings Vol I of 1998 International Congress on Plasma Physics 25th EPS Conference on Controlled Fusion and Plasma Physics, (1998)
Record Number: 199910922 / Last updated on: 1999-07-05
Original language: en
Available languages: en